diff --git a/src/plugins/kpackage/aurorae/aurorae.cpp b/src/plugins/kpackage/aurorae/aurorae.cpp
index 2ce0b9090d..209e75d4f3 100644
--- a/src/plugins/kpackage/aurorae/aurorae.cpp
+++ b/src/plugins/kpackage/aurorae/aurorae.cpp
@@ -15,28 +15,16 @@ void AuroraePackage::initPackage(KPackage::Package *package)
     package->setRequired("decoration", true);
 
     package->addFileDefinition("close", QStringLiteral("close.svgz"));
-
     package->addFileDefinition("minimize", QStringLiteral("minimize.svgz"));
-
     package->addFileDefinition("maximize", QStringLiteral("maximize.svgz"));
-
     package->addFileDefinition("restore", QStringLiteral("restore.svgz"));
-
     package->addFileDefinition("alldesktops", QStringLiteral("alldesktops.svgz"));
-
     package->addFileDefinition("keepabove", QStringLiteral("keepabove.svgz"));
-
     package->addFileDefinition("keepbelow", QStringLiteral("keepbelow.svgz"));
-
     package->addFileDefinition("shade", QStringLiteral("shade.svgz"));
-
     package->addFileDefinition("help", QStringLiteral("help.svgz"));
-
     package->addFileDefinition("configrc", QStringLiteral("configrc"));
-
-    QStringList mimetypes;
-    mimetypes << QStringLiteral("image/svg+xml-compressed");
-    package->setDefaultMimeTypes(mimetypes);
+    package->setDefaultMimeTypes(QStringList{QStringLiteral("image/svg+xml-compressed")});
 }
 
 void AuroraePackage::pathChanged(KPackage::Package *package)
diff --git a/src/plugins/kpackage/decoration/decoration.cpp b/src/plugins/kpackage/decoration/decoration.cpp
index 39d8a8d9c7..7d3ddf4062 100644
--- a/src/plugins/kpackage/decoration/decoration.cpp
+++ b/src/plugins/kpackage/decoration/decoration.cpp
@@ -11,9 +11,7 @@ void DecorationPackage::initPackage(KPackage::Package *package)
     package->setDefaultPackageRoot(QStringLiteral("kwin/decorations/"));
 
     package->addDirectoryDefinition("config", QStringLiteral("config"));
-    QStringList mimetypes;
-    mimetypes << QStringLiteral("text/xml");
-    package->setMimeTypes("config", mimetypes);
+    package->setMimeTypes("config", QStringList{QStringLiteral("text/xml")});
 
     package->addDirectoryDefinition("ui", QStringLiteral("ui"));
 
@@ -22,9 +20,7 @@ void DecorationPackage::initPackage(KPackage::Package *package)
     package->addFileDefinition("mainscript", QStringLiteral("code/main.qml"));
     package->setRequired("mainscript", true);
 
-    mimetypes.clear();
-    mimetypes << QStringLiteral("text/plain");
-    package->setMimeTypes("decoration", mimetypes);
+    package->setMimeTypes("decoration", QStringList{QStringLiteral("text/plain")});
 }
 
 void DecorationPackage::pathChanged(KPackage::Package *package)
diff --git a/src/plugins/kpackage/effect/effect.cpp b/src/plugins/kpackage/effect/effect.cpp
index a8cf3a04c0..797c6a6073 100644
--- a/src/plugins/kpackage/effect/effect.cpp
+++ b/src/plugins/kpackage/effect/effect.cpp
@@ -16,16 +16,16 @@ void EffectPackageStructure::initPackage(KPackage::Package *package)
     package->setDefaultPackageRoot(QStringLiteral("kwin/effects/"));
 
     package->addDirectoryDefinition("code", QStringLiteral("code"));
-    package->setMimeTypes("code", {QStringLiteral("text/plain")});
+    package->setMimeTypes("code", QStringList{QStringLiteral("text/plain")});
 
     package->addFileDefinition("mainscript", QStringLiteral("code/main.js"));
     package->setRequired("mainscript", true);
 
     package->addFileDefinition("config", QStringLiteral("config/main.xml"));
-    package->setMimeTypes("config", {QStringLiteral("text/xml")});
+    package->setMimeTypes("config", QStringList{QStringLiteral("text/xml")});
 
     package->addFileDefinition("configui", QStringLiteral("ui/config.ui"));
-    package->setMimeTypes("configui", {QStringLiteral("text/xml")});
+    package->setMimeTypes("configui", QStringList{QStringLiteral("text/xml")});
 }
 
 void EffectPackageStructure::pathChanged(KPackage::Package *package)
diff --git a/src/plugins/kpackage/scripts/scripts.cpp b/src/plugins/kpackage/scripts/scripts.cpp
index 598e00848a..ba6821ee49 100644
--- a/src/plugins/kpackage/scripts/scripts.cpp
+++ b/src/plugins/kpackage/scripts/scripts.cpp
@@ -11,9 +11,7 @@ void ScriptsPackage::initPackage(KPackage::Package *package)
     package->setDefaultPackageRoot(QStringLiteral("kwin/scripts/"));
 
     package->addDirectoryDefinition("config", QStringLiteral("config"));
-    QStringList mimetypes;
-    mimetypes << QStringLiteral("text/xml");
-    package->setMimeTypes("config", mimetypes);
+    package->setMimeTypes("config", QStringList{QStringLiteral("text/xml")});
 
     package->addDirectoryDefinition("ui", QStringLiteral("ui"));
 
@@ -22,9 +20,7 @@ void ScriptsPackage::initPackage(KPackage::Package *package)
     package->addFileDefinition("mainscript", QStringLiteral("code/main.js"));
     package->setRequired("mainscript", true);
 
-    mimetypes.clear();
-    mimetypes << QStringLiteral("text/plain");
-    package->setMimeTypes("scripts", mimetypes);
+    package->setMimeTypes("scripts", QStringList{QStringLiteral("text/plain")});
 }
 
 void ScriptsPackage::pathChanged(KPackage::Package *package)
diff --git a/src/plugins/kpackage/windowswitcher/windowswitcher.cpp b/src/plugins/kpackage/windowswitcher/windowswitcher.cpp
index 07940029c5..210f0fa4ec 100644
--- a/src/plugins/kpackage/windowswitcher/windowswitcher.cpp
+++ b/src/plugins/kpackage/windowswitcher/windowswitcher.cpp
@@ -11,9 +11,7 @@ void SwitcherPackage::initPackage(KPackage::Package *package)
     package->setDefaultPackageRoot(QStringLiteral("kwin/tabbox/"));
 
     package->addDirectoryDefinition("config", QStringLiteral("config"));
-    QStringList mimetypes;
-    mimetypes << QStringLiteral("text/xml");
-    package->setMimeTypes("config", mimetypes);
+    package->setMimeTypes("config", QStringList{QStringLiteral("text/xml")});
 
     package->addDirectoryDefinition("ui", QStringLiteral("ui"));
 
@@ -22,9 +20,7 @@ void SwitcherPackage::initPackage(KPackage::Package *package)
     package->addFileDefinition("mainscript", QStringLiteral("ui/main.qml"));
     package->setRequired("mainscript", true);
 
-    mimetypes.clear();
-    mimetypes << QStringLiteral("text/plain");
-    package->setMimeTypes("windowswitcher", mimetypes);
+    package->setMimeTypes("windowswitcher", QStringList(QStringLiteral("text/plain")));
 }
 
 void SwitcherPackage::pathChanged(KPackage::Package *package)